Um so I followed a guide online on how to make MDS or spotlight use less CPU and accidentally force quit instead of quit and now my computer has force shutdown and won't turn on I've tried plugin power cord in for an hour and router l

How for does the boot get? Would you remember the link? This would be a way to assess the damage. Do you have a backup?

Try a safe boot.

Shutdown your machine. Hold down the shift key. Poweron. The boot up will take longer than normal because the filesystem on the startup drive is being checked and repaired as needed. All about safe mode including what features and apps safe boot leaves out.

http://support.apple.com/kb/ht1455

R

Help us by not making us guess--what Apple model do you have?? What OS version is it running.

If you are unable to turn on the computer then make an appointment at the Apple Genius Bar for service. If you need to find an Apple Store - Find a Store - Apple. If you did not purchase it from Apple then you will need to look to the vendor for service or How to find your nearest Apple Authorized Service Provider (AASP) or Distributor (AAD).